I managed to complete building Nybble and eventually calibrate it 😁. It was sometimes frustrating, but fun and very rewarding at the end !
I have a couple of issues with the ultrasound sensor and getting the lights to work
There is a section in the Petoi Doc Center called “Ultrasonic Sensor” that has a picture of the board and Sensor with the connector cable, along with a build video of the head showing the cable connections.
The heavy duty connector cable that I received in kit has very stiff wire and has connector that does not fit into the board socket as shown on the picture in the doc. The connector can only go in one way. The Black Gnd cable connects to D8 on the board, Red one to D7, etc. I had to pull the head apart and reverse fit the connector into the socket. (see attached pic)
When I boot up Nybble the tiny LED behind the Ultrasonic Sensor lights up blue. That’s all that happens 😢
When I run the Firmware Uploader (in the desktop App) to try change the mode to "Ultrasonic" or "RandomMind_Ultrasonic" it fails. In the file directory PetoiDesktopApp\release\2.0\Nybble\ there is no directory for NyBoard__V1_2 containing the required *.hex files. My board is V1_2 so assume it needs the V1_2 firmware in the App. I have downloaded and installed the latest Petoi Desktop App (Jan 2023)
In the Petoi Skill Composer I can pull down the Eye Color Setter and select colors but nothing happens. The only button that works is “Meow”
Can anybody please shine a light on this issue?
You'd better refer to the User Manual and Petoi Doc Center befer playing with Nybble😀
Then unplug the Utrsonic sensor and try to upload the Standard Mode firmware.
Please try to unplug the USB adapter on NyBoard and the USB cable on your computer, and check if the serial port is OK,as following:
Then you'd better open the serial monitor in Arduino IDE, check if the comunication of serial port is normally.
If you reverse both ends of the Ultrasonic cable, It's should be OK. We have improve the cable sequence later.
About Using the Skill Composer to control the eyes color: the program will set the color automatically when it is uploaded the Ultrasonic mode firmware. So if you set the color in the Skill Composer. It can't keep your setting. We will improve this feature soon.
The correct sequence of the grove wire is as following, They should not be reversed.
the hex file is in the folder: "release\2.0\Nybble\NyBoard_V1_1", because the firmware of NyBoard_V1_2 is the same as NyBoard_V1_1.
If you use Windows OS, After uploading the firmware, the Desktop app and the cmd interface printing information should be as following: